Shredder for leaves



March 4, 1958 Filed March 13, 1956 J. S. OSTROWSKI SHREDDER FOR LEAVES 3Sheets-Sheet 2 INVENTOR.

A'ITD RN EYE 3 She ets-Sheet 3 Filed March 13, 1956 R mm 2 N 3 .0 0 E w6. A W m 2 t 8 3 r f 0 A... A A n o h 0 i 7 7 2 7 E a I 4 5 u- .PJ U. m.M. I. i w/ 1- 0- r. H B b m\ Mu Fm I 6 o 6 \i ATTD RN EYE United StatesPatent SHREDDER FOR LEAVES John S. Ostrowski, Waterbury, Conn.

Application March 13, 1956, Serial No. 571,262

3 Claims. (Cl. 146192) This invention relates to machines of thedisposal type wherein products deposited therein are shredderorpulverized, and in particular a machine for shredding leaves wherebyleaves deposited therein are reduced to small particles that are adaptedto be assimilated with. the soil when returned to the ground.

The purpose of this invention is to provide means for utilizingaccumulations of leaves wherein leaves deposited therein are shredded sothat they may be assimilated with the soil when returned or broadcastover the soil.

Various attempts have been made to reduce leaves, and the like, tofertilizer by stacking the leaves and applying moisture, periodically tothe stacks, however, as is requires several years for leaves to bedecomposed such attempts are not considered successful and,consequently, leaves are usually raked into piles and burned. With thisthought in mind this invention contemplates a shredding machineparticularly adapted for reducing leaves to fine particles whereinleaves spread over the soil and particularly over grass, such as in alawn, are readily assimilated with the soil and, eventually, have somevalue as fertilizer.

The object of this invention is, therefore, to provide a machine forshredding leaves wherein leaves deposited into an intake chute ofthe'machine are reduced to relatively fine particles which are adaptedto be returned to the soil.

Another object of the invention is to provide a machine for shreddingleaves in which the machine is portable so that it may readily be movedfrom one position to another.

A further object of the invention is to provide a shredder for leavesand the like in which the shredder is of a simple and economicalconstruction.

With these and other objects and advantages in view the inventionembodies a housing having wheels on one 53 side and a handle extendedfrom the opposite side with an intake chute extended from the upper endand a discharge or outlet chute extended below the lower part and arotary cutter rotatably mounted in the housing and operatively connectedto a motor or the like.

Other features and advantages of the invention will appear from thefollowing description taken in connection with the drawings, wherein: Y

Figure 1 is a side elevational view showing the shredder for leaves andthe like with the intake chute extended from the upper end and with aninclined chute for receiving the shredder leaves depending from thelower part.

Figure 2 is aplan view of the machine for shredding leaves. 7

Figure 3 is a longitudinal section through the machine taken on line 3-3of Fig. 2 with the cutting blade operating motor shown in elevation, onthe upper end.

Figure 4 is a cross section through the machine taken on line 44 of Fig.3.

Figure 5 is a sectional plan through the machine taken 2,825,377Patented Mar. 4, 1958 on line 55 of Fig. 3, showing the leaves shreddingblade and the supporting means therefor.

Figure 6 is a sectional view taken on line 6-6 of Fig. 3 lookingupwardly showing the intake chute and motor mounting elements of theshredder.

Figure 7 is a sectional plan taken on line 77 of Fig. 3 showing thecutting bar and screen which is positioned below the bar.

Figure 8 is a sectional view with the parts shown on an enlarged scale,through the lower part of the cutter bar actuating shaft mounting withother parts of the machine omitted and with ends of the cutter barbroken away.

Figure 9 is a plan view of the cutter bar shaft mounting shown in Fig.8. v Figure 10 is a cross section through one end of the cutting bladetaken on line 1010 of Fig. 7 with the blade shown on an enlarged scaleshowing, in particular, the sharp cutting edge.

Figure 11 is a vertical section through the intake chute of the machineillustrating a modficaiton wherein the chute is provided with a hingedgate or door.

Figure 12 is a section through the chute taken on line 12-12 of Fig. 11also showing the gate or door through which leaves are deposited intothe housing of the machine.

Referring now to the drawings wherein like reference characters denotecorresponding parts the improved'machine for shredding leaves of thisinvention includes the housing 9 having an inner cylinder 10, a shaft 11rotatably I mounted in the cylinder 10 and connected by a coupling 12 toa shaft 13 extended from a motor 14, a cutter bar 15 carried by thelower end of the shaft, a screen 16 positioned below the cutter bar,wheels 17 and 18 mounted on the forward end of the housing 9, a handle19 extended from the opposite side of the housing 9, an intake hopper orchute 20 extended through the upper end of the housing 9 and an outletchute having an inclined floor or bottom 21 positioned to receiveshredded or pulverized leaves dropping through the screen 16.

The housing 9 is provided with a front wall 22, a rear wall 23, sidewalls 24 and 25 and a cover 26 and, as shown in Figs. 5 and 6 the sidewall 24 is connected to the front wall 22 with an angle bar 27 and tothe rear wall 23 with a similar bar 28 and the side wall 25 is connectedto the front wall 22 with an angle bar 29 and to the rear wall 23 withan angle bar 30. I

The cover 26 is positioned to rest upon a clip angle 31 on the upperedge of the front panel 22, a similar.

clip angle 32 at the upper end of the rear panel 23 and clip angles 33at the sides and the cover is provided with a door 34 secured to theplate 26 with hinges 35 and 36 and having a handle 37 thereon and anopening 38 through which the lower portion 39 of the chute 20 extends,as shown in Fig. 4. The cover is reinforced with an upper plate 46 and alower plate 41 with spacing bars 42 and 53 positioned between the cover20 and lower plate 41 and with the plates connected with suitablefasteners 44.

The base of the motor 1 5 is secured in position upon the cover 26 withbolts 45 and the upper end of the motor is positioned in a cover orupper casing 46 on one end of which a fuel tank 47 is positioned.

The lower end of the shaft 11 is rotatably mounted by a bearing 43 in ablock 49 and the block is supported laterally by rods 52?, the'innerends of which are threaded into sockets 51' in the sides of the block'49 and these rods are secured in position by lock nuts 52. The rods orstuds are provided with left hand threads on one end and right handthreads on the opposite end and the intermediate parts of the rods areprovided with flat sides 53 to facilitate gripping the rods with awrench or the like.

' -1J1e-;-outer'endsflof thetrods extend through the v vall of 7 thecylinder 10 .and also: through the outer .-.walls of the l secured inthewalls of the-housing with innerlock nuts 54;,and;similar outer;nuts55;ta

illelfiweriendlof the-shaft ll with; a: nut 59ztwhich secures a thecutter bar against alshouldenfiO .atthelowernend of the shaft. Arwasherr6 1 maybe provided betvveen thenut '7 1.6, alstshjownjn Fig. 7 andthecutting-blades orsections Y,: Q 82,877 V f f" 1* design and arrangementof the partsfwithout' departing 7 from theespirit oflthetimtention r r T1 What is claimed is: v t o e 1. In a leaf shredding machine, thecombination which r a comprises a square shaped housing,ra verticallydisposed Thef cutter bar 15,.ttlie tends .of whichpareflpro vided lcylinder mounted inthe upper part of the housing in conwithcutting-edges. 56.and;57;:1is clampedtonga 'stu'dTSSIat tactv withthe'inner surface of the housing, a wire meshscreen removably inountedip the hou g, a COW?! h v g;

an opening therethrou gh po s: one d on the upper 'end'ojf the housing,a vertically disposed-shaft rotatably mounted I in the cylinder, albearing block\journalling said.shaft'in i said cylinder; rods connectedto said bearing block at their 1 inner finds and to:the cylinderiandframe at their outer a f 7 ends, a cutter bar carried.by thejower end ofthe shaftji housing, as shown in Fig. 3 and the rods are adjustab'ly andcutter bar. r l l a The cutter bar is positioned to rotate above thescreen at the ends ofL-theubar. ga're .fornged,zas illustrated;in;Fig.

sidesjof the 'screen are provided with support'vbars' 74 and'ZS WhichsIide on the horizontal'legs of thej angle bars 'tp and 71. AL-supportinplate: 76 ,is also; provided: on I the-endofQthe screen at the rear and;a;sin iilar plate;77 is provided on the screenat [the "front.

l ie pan m e .21; f r cw sthepulverized pi shredded leaves is mountedpnan angle bar 17,8;atfth'e i front and alsoon a similar barJQat-therear,the lower end heing providedwi h a1 flange, 30; that ist secured to the;angle bar 79 with fasteners 31 and. the "edgesbe'ing;

provided'with side Walls 82 and 83,;theuPPer .edgesiof which are securedto the: angle bars 10 and171.

' frictionfinger orit'ab 86. I p a V V 11ithemqdification illusmatedinfigs, L1 and 12 the The hopper orchute 29 is providedgwith ajcover 84/mounted on :the cover and-positioned with theshaft thence; w

of vertical, "a .shaft operatively connected to the 'rnotor; l shaftandtpositi'onedrinthe.centerLof.thelcylindcrfabladef havingsharpedgesgcarried by the 'lower 'ehd-of the-shaft j V andpositioned inspacedrelationtto the screen; a-beatiilg;

through which. the lovver end of the shaft extends; and

adjustable arms'connecting the bearing to the wall of the cylinderandhousing; r

.7 '3.- Ina-shredding machine,.theicomhinationwhich cofi i prises asubstantially rectangular shap'edvfrarne having corner postsz'co'nnected with horizontally' dispos'ed trans:

v verse iantl' longitudinallypositioned rails, a square shaped;

'1=Q;with;sharpgcutting edgesmngthe leadingqsides of the and positionedin" spaced relation jt'o "the upper ,surface b zand unwardlymurvedsectionsfilisonthe trailingedge; of the screenpa chute extended throughthe. opening oi 5" V v 1 The bar, is provided with an opening 64 throughwhich the cover forreceiving leaves deposited into the cylinder, 'thestud 58textfindsa J 1' V i I t 'l andachute positioned belowjthe'screen." j 7 a The angle bars 27 and 29 at the forward Iside'of the 2, Inarshizeddi igi-maehin' thegn bi ti nwhichp m: I ,hou ing ext nd. ownwrdly-to P I 11158265w andsfllbshaft prisesiapsubstantiallyr..reetangularshaped rframe having a '6 M1 a 'e-ls rcured in l gsi ofi' he'ia g 'Swith corner postsconnected:withlhorizontally disposed'trans?" l tS. 6 Iang rF KfiQ -BD a t e f fl versetandlongitudinallypositiofiedrails,aflsquare shaped V b i extend dbwnwal'dly -p i qw 3housing mounted:in;said frame, .athandlelextended from r f i h 1 7 P 2 lelowcnsuriaces ofjthe :wheels V the frame, a'cylinder mountedin'thehousing,l.a'wire rneslif l? 13 w by' l e' b 'pm pp screenremovablylmountedinthealowenendofthe housthe back p m c m L l V 1 7ing,; aninclined chute positionedib'elow the 'screentand I ;T het-wir sre n 1 rests ppm angle bars nd alsomountedin the housing, a coverhavingi-an opening 'QQ-'. h.l W 1 dg5 O e sldet-iwausr M ndtherethrougnmountedon therupper end of ttheih'ousing 9d;- B h 1935 3 drVLQ ht I1 ffionjti (2111523 I and providing azeovenfor the cylinder, 21leaf rec elving V and l'espectlvelyrandi 5 shown-in Flgs- 43nd 7316 3fchute.positionedin the .opening of-the Governm nt housing n'l'ciuntedtin said frame a handleiextended from the fra'me, afcylinde rumountedin-the housingg a wire mesh screen removably mounted in th'e lower endof the 7 housing; an inclined chute -positioned belovv the screen andalso-inounted -in the-{housing-a cover 'having an opening chute;,1sprovided with an upper hopper 8 7gan inter V I to a cover 92, 'similartothe CQVgIiZfiiWith bolts 93', The

V therethrough mounted ionth; upper end of the housing and providing acover for' thecylinde'r, a l eafrle'ceivinfg W chutefljhaving aspringactuated gatetherein-extended"? t through the :opening-ofthe cover;afniotormountdon 1 f e the cover and positioned withtheshafttherofverticahfaT 38am?! we g ut '$9;, m 1ar to" "th V. t ehQRPI iien tassshow ri B g-l1 the section189'i issprovided vuith acontinuous flange :96, I which'witha' similar flange 91 of zthe'sleeve88 issecured -hiopper 87 isip rovided 'xvith'a' depending flange 94'that' extends. intoithe upper end of the sleevelfisgm gate 95',positionedin the throat or lo'wenend of the hoppert V V V shaftoperatively connected-to theknotor shaft andf posi tioned intheic'enterof the'cylinder -a blade hayin'gfsharp '1 p t J edges carried bythedower'endoftheshaft'and positionedf I j v in .spzieedrielation tothelscreenga bearingthr'ough which I the lowenendof the shaft-extends;andf adjustable armstained 'in the upper position shpvvn;in Fig. llivith a r V secured to the gate 95 and theother section is'secured toafiange-lfil with bolts 102. A stop lllfi is prgvidedr r attheoppositeside l with horizontally .dispds ed hars 104 and 105 and si gi rf'bflIS j1 o6 fiDdI107 are extended across thegends 'of:- t-he "fi'arne,The hars may lbescuredgto the angle bars pr posts,-tsuchiasby'gweldingorthe bars mayiberet ainedin' spr n lling 8. :One section 9 9f the 59138 hinge is Vfiglllgiglflgithellbearmgltol PfVtheiqhgdrggdiletereucesifltei i be fil i u u t 31,1'19'11 f 1 12119293 7 ",,"1.937.IEJ637359 2,6. .1,584- a H 1. t- 53 2512:2111 Sinith 1 19-55"; "1 2, 6, 7

of the hopper; to upvvard "movement'ofithe gate." U 7 1 l: V The :sidesof the frameandhousing are reinfo gced,

position bylfa steners suchais the rivets 108v. V 7

' Itlwill he understood that other -modifieations,:.within

